Create a Joomla Template -- 2

I need to create a New Website that aggregates and publishes content from numerous sources from around the internet. Basically it could be a Joomla or Wordpress template that has plugins that will search the internet for content based on desired key words, aggregate the content and maybe automatically publish it based on set parameters. I already have Joomla and WordPress templates. Need someone to propose a plugin that will do the above and then implement that plug in